These were two of the 600ft towers at Belconnen Naval Transmitting Station in the north-west suburbs of Canberra, Australian Capital Territory, that have stood since 1938. They supported the top-loaded vertical antenna of the 44kHz VLF transmitter. They came down 4.07pm, on Wednesday 20 December 2006.
How was it done? Each tower had three sets of three guys going to different heights on the towers. One set of guy wires (three separate guys) was cut by explosive charges, and the weight of the remaining two sets of guys pulled the tower down between them.